title: Thrombocytosis in quiescent chronic granulocytic leukaemia after vincristine and 6-mercaptopurine therapy.
abstract: In an attempt to retard the appearance of blastic transformation 11 patients recently diagnosed with chronic granulocytic leukaemia were given courses of vincristine and 6-mercaptopurine after stabilization of the disease by busulfan. In 4 of the patients a marked thrombocytosis developed shortly after the administration of such courses. When we compared the clinical and biological features at the moment of diagnosis, the patients in whom thrombocytosis developed after vincristine and 6-mercaptopurine courses showed higher platelet counts and a smaller spleen size than the other ones, although no statistical significance was reached. A possible thrombocytopoietic effect of vincristine is discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007951:Leukemia, Myeloid / Q000188:drug therapy*; D008297:Male; D015122:Mercaptopurine / Q000009:adverse effects / Q000627:therapeutic use; D008875:Middle Aged; D013922:Thrombocytosis / Q000139:chemically induced*; D014750:Vincristine / Q000009:adverse effects* / Q000627:therapeutic use
chemical_list: D014750:Vincristine; D015122:Mercaptopurine